vendor/golang.org/x/sys/unix/syscall_linux_riscv64.go

   1 // Copyright 2018 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build riscv64,linux
   6
   7 package unix
   8
   9 import "unsafe"
  10
  11 func EpollCreate(size int) (fd int, err error) {
  12         if size <= 0 {
  13                 return -1, EINVAL
  14         }
  15         return EpollCreate1(0)
  16 }
  17
  18 //sys   EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
  19 //sys   Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
  20 //sys   Fchown(fd int, uid int, gid int) (err error)
  21 //sys   Fstat(fd int, stat *Stat_t) (err error)
  22 //sys   Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
  23 //sys   Fstatfs(fd int, buf *Statfs_t) (err error)
  24 //sys   Ftruncate(fd int, length int64) (err error)
  25 //sysnb Getegid() (egid int)
  26 //sysnb Geteuid() (euid int)
  27 //sysnb Getgid() (gid int)
  28 //sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
  29 //sysnb Getuid() (uid int)
  30 //sys   Listen(s int, n int) (err error)
  31 //sys   Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
  32 //sys   Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
  33 //sys   Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
  34
  35 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
  36         var ts *Timespec
  37         if timeout != nil {
  38                 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
  39         }
  40         return Pselect(nfd, r, w, e, ts, nil)
  41 }
  42
  43 //sys   sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
  44 //sys   Setfsgid(gid int) (err error)
  45 //sys   Setfsuid(uid int) (err error)
  46 //sysnb Setregid(rgid int, egid int) (err error)
  47 //sysnb Setresgid(rgid int, egid int, sgid int) (err error)
  48 //sysnb Setresuid(ruid int, euid int, suid int) (err error)
  49 //sysnb Setrlimit(resource int, rlim *Rlimit) (err error)
  50 //sysnb Setreuid(ruid int, euid int) (err error)
  51 //sys   Shutdown(fd int, how int) (err error)
  52 //sys   Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
  53
  54 func Stat(path string, stat *Stat_t) (err error) {
  55         return Fstatat(AT_FDCWD, path, stat, 0)
  56 }
  57
  58 func Lchown(path string, uid int, gid int) (err error) {
  59         return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
  60 }
  61
  62 func Lstat(path string, stat *Stat_t) (err error) {
  63         return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
  64 }
  65
  66 //sys   Statfs(path string, buf *Statfs_t) (err error)
  67 //sys   SyncFileRange(fd int, off int64, n int64, flags int) (err error)
  68 //sys   Truncate(path string, length int64) (err error)
  69
  70 func Ustat(dev int, ubuf *Ustat_t) (err error) {
  71         return ENOSYS
  72 }
  73
  74 //sys   accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
  75 //sys   accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
  76 //sys   bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
  77 //sys   connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
  78 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
  79 //sysnb setgroups(n int, list *_Gid_t) (err error)
  80 //sys   getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
  81 //sys   setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
  82 //sysnb socket(domain int, typ int, proto int) (fd int, err error)
  83 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
  84 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
  85 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
  86 //sys   recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
  87 //sys   sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
  88 //sys   recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
  89 //sys   sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
  90 //sys   mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
  91
  92 //sysnb Gettimeofday(tv *Timeval) (err error)
  93
  94 func setTimespec(sec, nsec int64) Timespec {
  95         return Timespec{Sec: sec, Nsec: nsec}
  96 }
  97
  98 func setTimeval(sec, usec int64) Timeval {
  99         return Timeval{Sec: sec, Usec: usec}
 100 }
 101
 102 func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
 103         if tv == nil {
 104                 return utimensat(dirfd, path, nil, 0)
 105         }
 106
 107         ts := []Timespec{
 108                 NsecToTimespec(TimevalToNsec(tv[0])),
 109                 NsecToTimespec(TimevalToNsec(tv[1])),
 110         }
 111         return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
 112 }
 113
 114 func Time(t *Time_t) (Time_t, error) {
 115         var tv Timeval
 116         err := Gettimeofday(&tv)
 117         if err != nil {
 118                 return 0, err
 119         }
 120         if t != nil {
 121                 *t = Time_t(tv.Sec)
 122         }
 123         return Time_t(tv.Sec), nil
 124 }
 125
 126 func Utime(path string, buf *Utimbuf) error {
 127         tv := []Timeval{
 128                 {Sec: buf.Actime},
 129                 {Sec: buf.Modtime},
 130         }
 131         return Utimes(path, tv)
 132 }
 133
 134 func utimes(path string, tv *[2]Timeval) (err error) {
 135         if tv == nil {
 136                 return utimensat(AT_FDCWD, path, nil, 0)
 137         }
 138
 139         ts := []Timespec{
 140                 NsecToTimespec(TimevalToNsec(tv[0])),
 141                 NsecToTimespec(TimevalToNsec(tv[1])),
 142         }
 143         return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
 144 }
 145
 146 func Pipe(p []int) (err error) {
 147         if len(p) != 2 {
 148                 return EINVAL
 149         }
 150         var pp [2]_C_int
 151         err = pipe2(&pp, 0)
 152         p[0] = int(pp[0])
 153         p[1] = int(pp[1])
 154         return
 155 }
 156
 157 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
 158
 159 func Pipe2(p []int, flags int) (err error) {
 160         if len(p) != 2 {
 161                 return EINVAL
 162         }
 163         var pp [2]_C_int
 164         err = pipe2(&pp, flags)
 165         p[0] = int(pp[0])
 166         p[1] = int(pp[1])
 167         return
 168 }
 169
 170 func (r *PtraceRegs) PC() uint64 { return r.Pc }
 171
 172 func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
 173
 174 func (iov *Iovec) SetLen(length int) {
 175         iov.Len = uint64(length)
 176 }
 177
 178 func (msghdr *Msghdr) SetControllen(length int) {
 179         msghdr.Controllen = uint64(length)
 180 }
 181
 182 func (cmsg *Cmsghdr) SetLen(length int) {
 183         cmsg.Len = uint64(length)
 184 }
 185
 186 func InotifyInit() (fd int, err error) {
 187         return InotifyInit1(0)
 188 }
 189
 190 func Dup2(oldfd int, newfd int) (err error) {
 191         return Dup3(oldfd, newfd, 0)
 192 }
 193
 194 func Pause() error {
 195         _, err := ppoll(nil, 0, nil, nil)
 196         return err
 197 }
 198
 199 func Poll(fds []PollFd, timeout int) (n int, err error) {
 200         var ts *Timespec
 201         if timeout >= 0 {
 202                 ts = new(Timespec)
 203                 *ts = NsecToTimespec(int64(timeout) * 1e6)
 204         }
 205         if len(fds) == 0 {
 206                 return ppoll(nil, 0, ts, nil)
 207         }
 208         return ppoll(&fds[0], len(fds), ts, nil)
 209 }
 210
 211 func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) {
 212         return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0)
 213 }
 214
 215 //sys   kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
 216
 217 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
 218         cmdlineLen := len(cmdline)
 219         if cmdlineLen > 0 {
 220                 // Account for the additional NULL byte added by
 221                 // BytePtrFromString in kexecFileLoad. The kexec_file_load
 222                 // syscall expects a NULL-terminated string.
 223                 cmdlineLen++
 224         }
 225         return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
 226 }